A friend of mine has been banned indefinitely under suspicion of violating forum rules. It was said they'd receive an email, but no email was sent (yes, the junk and such has been checked thoroughly). They are polite and don't attack others. They are a frequent poster for SAM related threads and job balance, both in JP and EN. Don't know why and support isn't even open right now. Can only guess it was malicious targeted reports or something else.